ADJ VIZI CMY300 User Instructions page 10

DMX SET UP (continued)
Special Note: Line Termination. When longer runs of cable are used, you may need to use a terminator on
the last unit to avoid erratic behavior. A terminator is a 110-120 ohm 1/4 watt resistor which is connected
between pins 2 and 3 of a male XLR connector (DATA + and DATA -). This unit is inserted in the female XLR
connector of the last unit in your daisy chain to terminate the line. Using a cable terminator (ADJ part number
Z-DMX/T) will decrease the possibilities of erratic behavior.
5-Pin XLR DMX Connectors. Some manufactures use 5-pin DMX-512 data cables for DATA transmission in
place of 3-pin. 5-pin DMX fixtures may be implemented in a 3-pin DMX line. When inserting standard 5-pin
data cables in to a 3-pin line a cable adaptor must be used, these adaptors are readily available at most
electric stores. The chart below details a proper cable conversion.
Conductor
Ground/Shield
Data compliment (- signal)
Data True (+ signal)
Not used
Not used
Termination reduces signal errors and avoids
signal transmission problems and interference.
It is always advisable to connect a DMX
terminal, (Resistance120 Ohm 1/4 W) between
PIN 2 (DMX-) and PIN 3 (DMX +) of the last
fixture.
3-Pin XLR to 5-Pin XLR Conversion
3-pin XLR Female (Out)
A.D.J. Supply Europe B.V. – www.adj.eu – Vizi CMY300 Instruction Manual Page 10
Figure 4
Pin 1
Pin 2
Pin 3
5-pin XLR Male (In)
Pin 1
Pin 2
Pin 3
Do Not Use
Do Not Use